Simple criteria are established to maximize the crack arrest ability and to determine the critical crack angle.
Optimisation of the fatigue crack arrest ability of unidirectional continuous fibre reinforced metal matrix composites is investigated by considering the damaging processes of interfacial debonding and fibre bridging.
It is suggested that fibre interface debonding is the principal controlling factor in determining the crack arrest ability of these materials.
In addition, the results of real time PCR granted valuable details on some aspects and mechanisms that underlie the cell cycle arrest ability of MBS extract.
By monitoring expression of Stra8, which is widely accepted as a germline-specific gene required for meiotic competency and commitment in mammals [ 14, 20], herein we identified premeiotic germ cells in ovaries of aged mice that appear arrested in their ability to develop into oocytes.
But a crackdown on the Brotherhood, in which more than 1,000 people have been killed and thousands of others arrested, has limited its ability to mobilise supporters.
It is later, at four and five weeks of age, that a difference appears, as exercised flies halt their decline in stress resistance, and show dramatic improvements in both arrest rate and in ability of arrested hearts to regain normal function (Fig. 3).
Second, we found that the feeding motor program was normal in arrested animals, since the ability to ingest bacterium-sized beads into the gut lumen was unaffected (Figure 3C).
Once again, cells may be arrested but retain PP, the ability to restart proliferation, when allowed.
Any mutation that impairs the arrest-inducing ability of the nascent chain would allow more ribosomes to translate the lacZ sequence and thereby increase the β-galactosidase activity.
